To check for disconnected devices - IQnext manages a list of the disconnected gateway, wired and wireless devices. You can track the status of disconnected device of a building or a floor here.
To access a list of disconnected devices:
Log in to your IQnext account.
Go to Settings > IQnext Settings > Disconnected devices (under device management)
Select the Gateway, Wired or Wireless devices depending on the type of devices you want to view.
A list will show the timestamp of the last activation of the device along with the building, floor, room, and WSN( Wireless Sensor Network) number.
If it is a gateway device you can access the IP address and the track of inactivity by clicking on the View Details option corresponding to it.
Additionally, you can filter the building/floor for which you want to view the devices by clicking on the Apply Filter above the Details.